Broadcasting TV has become a necessity of life an important part, however, recently held in Beijing in 2006 Broadcasting Network Exhibition, presented to the people is kind of "broadcasting live" in the "triple play" of the banner People familiar Cable television Will gradually give way to Digital TV , High definition television, Mobile TV And so on.
Digital cable shift Vice President of Broadcasting Science of China Zou
peak of this year's show is most characteristic of broadcasting digital TV and high-definition television blossom everywhere.
Digital TV is a brand new cable television service, the picture quality can be achieved DVD And above the level of the video for the user to select the program content is also very rich and interactive. Therefore, some people believe that business and Telecommunications Operation Commercial pilot in progress IPTV Very similar to the so-called broadcasting and telecommunications fight Interactive TV Market refers to this.
Less current cable television programs, low-resolution, in particular the interaction is poor, only one-way passive acceptance of cable channels and programs, program no longer had time for a watch, therefore, allows the user like Knock-off DVDs Independent film-demand programs as digital TV is considered the direction of development.
It is reported that global cable are converted to digital television, digital TV world last year reached 170 million users, 40 million more than in 2004. Britain is the country with the highest digital TV penetration has reached 70%, followed by the United States, 55%, 50% of Japan again. Global digital TV penetration rate of more than 16% on average.
Plans according to SARFT, China shut down of analog TV signals broadcast timetable set in 2015. Currently, China has in Qingdao, Hangzhou, more than a dozen cities the digital television conversion. According to statistics from SARFT, China Digital TV penetration rate is currently 1.2% overall, the proportion of digital cable is only 3.5%. Therefore, development of thematic reports in the current Radio and Television Conference, deputy director of SARFT Zhang Haitao Exclaim: "This year the overwhelming task of broadcasting system is analog TV to digital TV conversion, this is the second broadcasting industry Business . "
HDTV will show up Olympics Will
Industry generally believe that with digital TV at the same time attack the high-definition television is the future direction of radio and television.
High-definition television, the name suggests, the digital high-definition television, filming, editing, Make , Broadcast, transmit, receive all the whole process of using digital technology. "HD TV" to emphasize that the TV screen display capabilities to achieve high-definition, while digital television is the general term for a TV service.
The experts said that many consumers think that buying a high-definition TV, you can watch high-definition television programs it wishes, it is not right. In addition to require users to watch high-definition television with high definition TV , But also required adequate radio and television departments HD programming.
Present, CCTV HD Channel on September 1 last year in Hangzhou, Chengdu, Chongqing, and Dongguan city began charging pilot 4. State Administration of Radio Science and Technology Division standard management everywhere Sun Chuan Su said, the development of high-definition TV is broadcasting the "Eleventh Five-Year" Planning Focus, and will launch more HD channels.
For earlier reports that "during the 2008 Olympic Games will do high definition TV "Sun Suchuan explained:" During the 2008 Olympic Games, China will make high-definition television, a set or sets of signals. HD will be part of the Olympic program, but not all HD. "
Start mobile TV debut The Radio and Television Show, audience reaction is the strongest hand-held television. High-pass , North Canton and the South Korean electronics company demonstrated a number of mobile TV applications. TV mobile phones are considered a major fashion in the future, it is also broadcasting, telecommunications and computer networks the most important manifestations.
"Hold the phone to see the Olympic sports events, this is the advantage of handheld television." Zou Feng think.
Now China Mobile , China Unicom can provide users with mobile TV services. China Mobile and Shanghai Media News media group cooperation, to the nation late last year launched the service, this is the first time, the telecommunications and broadcasting sectors to join hands to enter the mobile TV. However, the current telecom operators to provide mobile TV service is running on 2.5G or 2.75G mobile communication network, the charges in accordance with the flow or Package On way expensive.
In addition, mobile TV, there still exist such as the slow network transfer rate, battery life is short, many problems such as small terminals, while as many as four kinds of technical standards related to the above, and no one is in China with their own Intellectual property rights And, therefore, the popularity of mobile TV will take some time.
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